OG 不懂,请教,从头开始不要笑

Fabulous

5. Carbon-14 dating reveals that the megalithic monu­ments in Brittany are nearly 2,000 years as old as any of their supposed Mediterranean predecessors.

首先, 这句话是什么意思.其中的DATING怎么讲?为什么它就是说这个比那个早2000年而不是说AS OLD AS呢?

还有SUPPOSED怎么讲?

6. In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's trying to metabolize, or render harmless. the chemical that is irritating it.

render harmless=V. + adj.==??

第二个逗号后面那些东西是什么意思?irriant为什么refer to the dioxin?

THANKS

[此贴子已经被作者于2004-11-3 5:07:21编辑过]

rhod

Fabulous您好！

这两题在置顶的OG讨论连接汇总里面都有讨论。建议您可以先参考前辈的旧贴，然后如果还有问题，可以跟贴提问，这样方便后人的查询和搜索。谢谢！